I have had Atari computers at home since 1990. In fact, one Atari or other
has always been the only computer in the house. Beside being quite useful at
times to do some serious work, meddling with Ataris was, and still is, a
nice hobby- something like driving an oldtimer car.
These are some of my works related to the 16bit line of Atari computers:
HD-Floppy module :
Schematics, PCB layout and instructions for building and installing a
simple one-chip HD-floppy module into ST and MegaST range of computers.
An interesting feature of this particular design is that it switches the
floppy-controller chip into 16 MHz mode only when a HD-floppy is inserted
into drive, thus preventing needless overheating of the overclocked WD1772
chip. Instructions for physical installation of the device in the computer
are included.
LaceScan board :
An implementation of Ulf Ronald Andersson's LaceScan (c), a two-chip
hardware hack which increases screen resolution of Atari ST and MegaST
computers up to about 750x490 on an appropriate monitor (maximum of about
688x480 possible on a well-adjusted SM-124). The work presented here
consists only of a PCB design and instructions for installing it in Atari
MegaST computers. Schematics and other details of LaceScan can be
found at Ulf Ronald Andersson's web page: http://dlanor.atari.org
Floating-point accelerator :
Schematics, prototype board layout and instructions for building and
installing a memory- mapped MC66881 Floating Point Unit board into MegaST
(or Atari ST) range of computers. For the few applications which recognize
this type of FPU it gives an average performance boost of about 500% in
floating-point-intensive operations.
Tera Desktop :
The only open-souce desktop currently available for the 16-bit and 32-bit
lines of Atari computers. A small, fast and simple desktop suitable for the
modern multitasking environments but also capable of running on the
low-end machines.